Washington Elementary (Data source)
Source data for Washington Elementary
2015
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 3 | 1086028 | 2391 | - | 2436 | = | -45 | * | (107 | / | 308) | = | -15.63311687 | ||
| 4 | 1086031 | 2414 | - | 2485 | = | -71 | * | (99 | / | 308) | = | -22.82142854 | ||
| 5 | 1086032 | 2454 | - | 2528 | = | -74 | * | (102 | / | 308) | = | -24.50649349 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Washington Elementary | -63 | ||||||||||||
2016
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 3 | 34032 | 2383 | - | 2436 | = | -53 | * | (91 | / | 296) | = | -16.2939189 | ||
| 4 | 34034 | 2426 | - | 2485 | = | -59 | * | (112 | / | 296) | = | -22.3243243 | ||
| 5 | 34036 | 2439 | - | 2528 | = | -89 | * | (93 | / | 296) | = | -27.96283782 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Washington Elementary | -67 | ||||||||||||
2017
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 3 | 34627 | 2418 | - | 2436 | = | -18 | * | (94 | / | 266) | = | -6.36090224 | ||
| 4 | 34629 | 2441 | - | 2485 | = | -44 | * | (76 | / | 266) | = | -12.57142854 | ||
| 5 | 34631 | 2444 | - | 2528 | = | -84 | * | (96 | / | 266) | = | -30.31578942 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Washington Elementary | -49 | ||||||||||||
2018
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 3 | 34631 | 2407 | - | 2436 | = | -29 | * | (88 | / | 247) | = | -10.33198379 | ||
| 4 | 34632 | 2447 | - | 2485 | = | -38 | * | (91 | / | 247) | = | -13.99999998 | ||
| 5 | 34635 | 2464 | - | 2528 | = | -64 | * | (68 | / | 247) | = | -17.61943315 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Washington Elementary | -42 | ||||||||||||
2019
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 3 | 34802 | 2408 | - | 2436 | = | -28 | * | (87 | / | 265) | = | -9.19245281 | ||
| 4 | 34803 | 2435 | - | 2485 | = | -50 | * | (88 | / | 265) | = | -16.60377355 | ||
| 5 | 34804 | 2492 | - | 2528 | = | -36 | * | (90 | / | 265) | = | -12.22641508 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Washington Elementary | -38 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -63 | -67 | -49 | -42 | -38 | -259.0 | -51.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -15.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -87.8
For the lines, you have the data necessary to plot the chart.
Very last step
The percent of students getting a Free or Reduced Price Meal comes from the following sources:
| 2015 | 2016 | 2017 | 2018 | 2019 | |
|---|---|---|---|---|---|
| Percent | 95% | 87% | 85% | 84% | 84% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Pasadena Unified school district | County of Los Angeles
THIS chart shows what the school system "wants"
PLUS a "special" or "outside" cause of variation: wealth/poverty.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
Washington Elementary math proficiency
Zero+ meets standard.
87% less $meal
81% less $meal
79% less $meal
81% less $meal
78% less $meal
• Any result above zero is proficient; below is not proficient. • There is a 99% chance that results will remain the same in coming years, which is to say, between the Upper and Lower Control Limits (the gray lines). • The houses with the % of students receiving a Free or Reduced Price Meal is a measure of wealth/poverty.